We introduce a model of fishing behavior that features costly targeting of a spatially and temporally heterogenous, multiple-species fish stock. We characterize fishing behavior under species-specific regulations including time-area-depth closures, per-trip landings limits and tradable harvest...

The objective of this paper is to provide policymakers with new estimates of the separate returns to public agricultural research and extension and a perspective on future agricultural productivity growth. This requires fitting an econometric model that contains separate regressors for the stock...

Iowa endured high outmigration rates among young adults during the 2000 to 2010 period.  In light of accelerating exits from the labor force as the "baby boom" generation reaches retirement age and Iowa's somewhat smaller labor force ages 25 through 44 than the national average, the state's...

During the past half century, per-acre maize yields have increased due to improved cultivars, better management, and favorable weather.  Recent US biofuel legislation, e.g., revised Renewable Fuel Standard, has increased the demand for bio-fuel and added competition for available cropland. ...

This paper investigates the role of infrastructure aid to developing countries in a 3x2 model with two traded goods and a nontraded good, with the focus of analysis placed on the effects on real national income and the Dutch disease effect.  It is shown that for a recipient country,...

Sequestration-caused reductions in federal spending may yield tangible economic impacts in Iowa if they were to occur.  This short paper estimates, using an input-output model of federal spending, the potential job and income losses that might be realized in Iowa from reduced federal spending

 

I develop agent-based economic models to tackle real-world problems. My research interest is the development of agent-based computational models for social science applications such as the study of real estate markets and environmental economic issues. I have been a research assistant (RA) at...

 

The potential of biomass for alternative energy production has attracted considerable attention because of associated implications for energy security, food supply, and climate change. This paper considers the economic impacts of spatial variation and landowner behavior on potential biomass...